At 9 a.m. PDT, bid committees from San Francisco, Miami and Houston will pitch the NFL's 32 owners for 15 minutes each at a Boston hotel boardroom.

The NFL staff then will summarize the plans for 15 minutes, and the owners of the 49ers, Dolphins and Texans will speak for five minutes each.

At 10:30 a.m. PDT, each of the 32 owners will complete a secret, written ballot -- first between San Francisco and Miami for the 50th Super Bowl, then between the loser and Houston for the 51st.

AFC owners will pass their votes to Kansas City Chiefs owner Clark Hunt; NFC owners will pass their votes to New York Giants owner John Mara.

Frank Supovitz, the NFL's senior vice president for events, will tabulate the votes. If a host region does not score 75 percent of the votes, the owners will vote again. That vote would require only a simple majority -- 17 votes -- to declare the winner.

At 11 a.m. PDT, NFL Commissioner Roger Goodell will announce the winners at a news conference televised live on NFL Network, available live online to subscribers.